TPS61103PWG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TPS61103PWG4 is a dual-output boost converter with current-mode PWM control, switching at 800 kHz with up to 800 mA output current and an input range of 0.8 V to 3.3 V in a 20-pin TSSOP package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- TPS61103PWG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-output boost converter with 800 mA peak switch current and 800 kHz switching frequency for compact filter design
- Wide input voltage range of 0.8 V to 3.3 V enables operation from single-cell Li-Ion or two-cell alkaline batteries
- Current-mode PWM control in a 20-pin TSSOP package for fast transient response and easy PCB layout
Applications
The TPS61103PWG4 is well suited for powering dual-supply LCD bias circuits and white-LED backlights in portable consumer devices where battery voltage ranges from 0.8 V to 3.3 V. Its 800 kHz switching frequency allows the use of small inductors and capacitors, making it ideal for thin handheld devices and wearables. The dual-output topology also supports mixed-voltage digital and analog subsystems in low-power IoT nodes.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 3.3V |
| Input Voltage-Min | 0.8V |
| Input Voltage-Nom | 1.8V |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1.8A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 1.5V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 800kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS61103PWG4:
Switching Regulator, Current-mode, 1.8A, 800kHz Switching Freq-Max, BICMOS, PDSO20
Frequently Asked Questions
What input voltage range does the TPS61103PWG4 support, and which battery chemistries are compatible?
The TPS61103PWG4 accepts input voltages from 0.8 V to 3.3 V, covering single-cell Li-Ion batteries (2.7 V to 4.2 V discharged down to cutoff), two-cell alkaline batteries, and even one-cell NiMH cells down to 0.8 V. This wide range ensures the regulator continues to boost output even as the battery discharges, maximizing run time.
How does the 800 kHz switching frequency of the TPS61103PWG4 benefit PCB layout in space-constrained designs?
Running at 800 kHz allows the use of inductors as small as 4.7 µH and output capacitors below 10 µF, significantly reducing component footprint. This high frequency also pushes switching noise above the audible range and well above most sensor bandwidths, simplifying EMI filtering in 20-pin TSSOP-based layouts.
When is the TPS61103PWG4 a preferred choice over a single-output boost converter for a portable device design?
The dual-output capability of the TPS61103PWG4 saves board space and BOM cost when a design requires two regulated rails — for example, a +5 V digital supply and a separate bias rail — from a single 1.8 V nominal battery. Replacing two discrete single-output 800 kHz converters with this 20-pin part reduces component count and PCB area.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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